Photographic-printing device



stanzas prvents the front sections forming too acute anjiang'le-witlfirelation to the r section, which would-normally be the case nus to plementalspiingfl-th hinits'the'ang'ular ensue-e er "e'se' udjhcelit presser bacbsec tionse when I "the back is in" lifted position whereby thefsectiojns held i'n-iafredo termin'edlifted uranium: This desire posh tion-"is "such that, upoir majiun mbvement of the back; toiolo'seiij jgu 'chthc' gl ass, the'selitibfit first conth'c slhfthe lass and holds the film, fi-int'nlgfii er, masks, etc, in positioned rfiation on t 'eg ass full view of the operativeso'thatitfls easy to determine that proper placement will be retained. Further the section 5 assures a, firm engagement on the paper, etc. while section 6 15 still in lifted position, permitting easy withdrawal of the operatives hand which has adjusted the printing paper, etc. This is accomplished by aid of the coiled spring 34.

. As it is common to provide, in devices of this kind, make-and-break electric switches, in circuit with an electric lamp or lamps 3, such switch means 38 is only indicated and the usual circuit wiring is omitted herein. However, there is represented in the drawlugs a spring-actuated plun r 39 adapted to control the switch 38. his plunger 18 adapted to be inwardl pressed, a must tension of its spring 40, y this late g memher when in latched position. The mpg 40 returns the plunger 39 to outwa CH- cuit-breaking position, upon latch release.

There is thus rovided a novel hotographic printing d zwice which is simp e and accurate in operation and lends itself to rapid printing. lhe normal, lifted osition of the back sections is such that the and of the operator which is positioning the printin material is not forced, into a cramped an view-obscuring position preparatory to completely closing the back, and the latching and lifting means are such that a rearwar blow from any front angle immediately causes the automatic lifting of the back to a definite position from which it may quickly be returned to closed position upon re-positioning of film and paper, etc. i

It is to be understood that the construction disclosed herein is illustrative but not restrictive. and that the same may be modified within the meaning and scope of the claims which follow:

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is:

1. A. photographic printing device including, a support provided with a negative-receiving opening, luminous means under the opening, translucent means on the support covering said opening to support the photographic printing material, a Presser-buck pivotalli' mounted an the support'and' ada t: edto c ose said opening find' to he lifted therefi'om,-"latohiiig"nieans to retain the back m sused-spouses, a' ;tifting spring oper atively connected *to said back" to lift the 1'0 back upon awa eness and recoil means to redraw 'aiiwssaid' 'liftingfprin'g' ufter' the h'aclr is'li whereb' the ack is normally. heldfalioye ansmdjaiiene the ope i 'g:

, Aphotcgia'phie' rinting device includ-' i yasupps c pr'ovi ed'with'a' negative-'reflying opening-, lum nous-means under the penifigifirdns u'ceiit mea'ns on the support a'vering-tliecpeuing to support the p on graphic pi-inning 1. material; presser back' so movably mounted on the support and adapted to close the opening and to be lifted therefrom, latching means to retain the back in closed position, a shaft pivotally mounted on said support and connects to said resser-back, a torsion spring on said shaft to lift the back upon latch release, and a second torsion recoil spring on said shaft to work a inst the liftln sprin after the back is ifted whereby t a back is normally held above and adjacent 'the opening.

3. A photographic printing device including, a support provided with a negative-receiving openin luminous means under the opening, trans ucent means on the su port covering the opening to support the p otographic printing material, a. presier-back pivotall mounted on the supplort and adapted to cose the opening an to be lifted therefrom, the resser-back being formed of a plurality of sections hinged together, a superimposed member on one of the sections substantially covering the same latching means pivotally secured to said member an ads to upon movement of the Presser-back 196 to c osed position, releasably to engage the sup ort whereby the resser-back is held un or pressure in clo position, and. resilient means between said superimposed member and section whereby the front section is resiliently held in closed position.

4. A photographic printing device including, a support provided with a. negative-receiving openin luminous means under the opening, translucent means on the su port covering the opening to support the pliotographic printm material, a resser-back movably mounted on the support and adapted to close the opening and to be lifted therefrom, the resser-back being formed of a plurality of sections hinged together, a superimposed member on one of the sections substantially covering the same, latchin means pivotally secured to said member and adapted, upon movement of the presser-back to closed position, releasably to engage the support whereby the presser-back is held under pressure in closed position, tension means mounted upon said so port and connected to said superimpose member and dapt e to 1m 5. A

p n t s o t la ch ng ean the resser-back to opgn ppsition.

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